A goal conversion takes place when visitors complete a specific goal you’ve set for your website such as make a purchase, add to cart, or sign up for your blog.
Sessions by Device Type refers to the breakdown of website visitors based on their device type.
Page load speeds refer to the time it takes to load and display the entire content of a web page for the website visitors.
The bounce rate is the percentage of your website visitors who exit right after viewing just a single page.